Sterile lock



FIG. 1 is a top front right side perspective view thereof;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines are directed to environment and are for illustrative purposes only. The broken lines form no part of the claimed design. 

CLAIM The ornamental design for a sterile lock, as shown and described. 